It appears that there may have been another spillover of H5N1 bird flu virus ... from the milk of the Arizona herd was also a D1.1 virus, but apparently a different version of it.

Tucson Bird Alliance and volunteers have counted the stunning birds each spring in their only U.S. breeding stronghold.

Hickman's Family Farms lost 95% of its Arizona hen population, about 6 million birds, because of avian flu. The company expects layoffs and the end of its inmate labor program but its CEO doesn't ...

The Arizona Department of Agriculture (AZDA) recently confirmed the first bird flu genotype D1.1 detection ... All previous detections in dairy cattle were a different genotype, B3.13.

Bird flu was recently detected at a poultry farm in Maricopa County. This marks the third time bird flu has been detected in Arizona this year.

However, the Eurasian H5N1 strain currently circulating in North America is different and has caused the death of a large number of wild birds, Arizona Game and Fish said in a news release.

Maley directs the Arizona Cancer and Evolution Center ... to account for the evolutionary relationships between different bird species, allowing them to identify patterns that likely arose ...